AVA Hearing Center - Technology Page

Where Better Hearing Begins...

5344 Plainfield NE
Grand Rapids, MI 49525
616-365-1979

How Digital Technology
Improves Sounds and Conversations

It is a fact: New digital hearing aids are superior to traditional analog aids. Digital technology does far more with sound, and provides most people better results than analog. Digital hearing aids utilize digital signal processors to convert sound into computerized 'bits'. These bits are manipulated in complex ways, using mathematical formulas known as algorithms. The result is sparkling sound quality, specifically tunable to match your individual needs.

Digital signal processors (DSP) are amazingly fast and agile. They actually recognize key sound ingredients. Like a graphic equalizer in a high-end audio system, DSP algorithms continually divide sounds into frequency channels. These channels help preserve and emphasize selected sound frequencies. For example, the higher frequencies containing vital consonant sounds in speech – the "c" and "t" sounds in "cat" – over the distracting rumble of low frequency noise.

Digital hearing aids also manage noise by duration. While speech sound intensity can change radically in a millisecond, many noises are acoustically more stable over a comparatively longer time. Digital hearing aids precisely reduce the levels of continuous sounds like traffic noise and household appliances. They instantly readjust when changes occur, detecting shorter duration sounds and restoring amplification. That same sensitivity also works in quiet surroundings. Utilizing an audio technique called expansion, digital algorithms sense the consistency of softer environmental sounds from ventilation systems and appliances.

Digital algorithms can also minimize and eliminate the onset of feedback, a common nemesis to hearing instrument use. Within its elaborate frequency channel network, DSP algorithms detect the elements of feedback before they become audible. Levels instantly reduce in just those discreet channels, with no noticeable effect on perceived volume levels.

The precision and flexibility of digital technology also provides the ability to accurately tailor amplification for the best possible match to your listening and lifestyle needs. This process may include subsequent visits to ensure that you are receiving maximum benefit from your instruments. At AVA Hearing Center, we want to be part of this process. We provide free batteries and services for the life of all digital hearing aids purchased through us. It is AVA's way of ensuring your complete satisfaction.